CN104319436A - Hairpin filter with conversion structure - Google Patents
Hairpin filter with conversion structure Download PDFInfo
- Publication number
- CN104319436A CN104319436A CN201410539112.4A CN201410539112A CN104319436A CN 104319436 A CN104319436 A CN 104319436A CN 201410539112 A CN201410539112 A CN 201410539112A CN 104319436 A CN104319436 A CN 104319436A
- Authority
- CN
- China
- Prior art keywords
- resonator
- layer
- blind hole
- hairpin
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a hairpin filter with a conversion structure. The hairpin filter with the conversion structure comprises a ceramic substrate consisting of first to eleventh layers of LTCC, first to fourth hairpin resonators and a coplanar waveguide, wherein the filter unit is positioned in the eighth substrate at the lower part, and achieves interconnection with the coplanar at the top layer by the conversion structure. According to the hairpin filter with the conversion structure, strip line signals of the hairpin filter are introduced into the surface layer by arranging the conversion structure, so that the signal layer of the hairpin filter is positioned in the surface layer, and thereby the system circuit structure is more unified.
Description
Technical field
The present invention relates to filter field, particularly a kind of hair clip filter with transformational structure.
Background technology
Traditionally, micro-strip resonantor is often used in design microwave filter.But along with the development of microwave technology, traditional flat filter is comparatively large due to its sectional area, can not meet existing requirement.People have studied LTCC multilayer manufacturing technology to improve the volume size of filter, and this technology can be embedded into the resonator making strip lines configuration the inside of ceramic substrate, thus reduces the cross-sectional dimension of filter.Usually, adopt the input/output terminal of the strip line signal of the Multilayer filter of LTCC technology to be usually located at the intermediate layer of Multilayer filter, and the circuit structure of the system usually adopted in practice is all positioned at top layer, thus makes the circuit structure disunity of system.
Summary of the invention
In view of this, the invention provides a kind of hair clip filter with transformational structure, by arranging transformational structure, the strip line signal of hair clip filter is introduced top layer, thus make the signals layer of hair clip filter be positioned at top layer, make the unification more of circuit system structure.
A kind of hair clip filter with transformational structure provided by the invention, comprises the ceramic substrate and 1st ~ 4 hairpin-line resonator that are made up of 1st ~ 11 layers of LTCC; 8th layer of upper surface and the 1st layer of lower surface of described ceramic substrate are all coated with metal ground, are intermediate grounded layer between described 4th layer and the 5th layer; Described 1st resonator and the 4th resonator are symmetricly set on the strip line layer between the 6th layer and the 7th layer; Described 2nd resonator and the 3rd resonator are symmetricly set on the strip line layer between layers 2 and 3; Described 1st resonator and the 4th resonator are the hairpin-line resonator with asymmetric input/output structure; Described 2nd resonator and the 3rd resonator are the hairpin-line resonator with symmetry inputs and outputs structure; Described intermediate grounded layer offers 2 gaps to produce hybrid coupled; It is characterized in that, the upper surface of described 11th layer is set to co-planar waveguide layer, and described transformational structure is arrive the input blind hole of the 1st resonator input through 7th ~ 11 layers and arrive the output blind hole of the 4th resonator output through 7th ~ 11 layers; 2 exhausting hole circumference array are also evenly distributed with around described input blind hole and output blind hole; The diameter of described input blind hole, input blind hole and through hole is 0.15mm; The diameter of described 2 exhausting hole circumference array is 0.73mm and 1.18mm respectively.
In sum, the invention provides a kind of hair clip filter with transformational structure, by arranging transformational structure, the strip line signal of hair clip filter is introduced top layer, thus make the signals layer of hair clip filter be positioned at top layer, make the unification more of circuit system structure.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, clear, complete description is carried out below by the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
One embodiment of the invention provides a kind of hair clip filter with transformational structure, comprises the ceramic substrate and 1st ~ 4 hairpin-line resonator that are made up of 1st ~ 11 layers of LTCC; 8th layer of upper surface and the 1st layer of lower surface of described ceramic substrate are all coated with metal ground, are intermediate grounded layer between described 4th layer and the 5th layer; Described 1st resonator and the 4th resonator are symmetricly set on the strip line layer between the 6th layer and the 7th layer; Described 2nd resonator and the 3rd resonator are symmetricly set on the strip line layer between layers 2 and 3; Described 1st resonator and the 4th resonator are the hairpin-line resonator with asymmetric input/output structure; Described 2nd resonator and the 3rd resonator are the hairpin-line resonator with symmetry inputs and outputs structure; Described intermediate grounded layer offers 2 gaps to produce hybrid coupled; It is characterized in that, the upper surface of described 11th layer is set to co-planar waveguide layer, and described transformational structure is arrive the input blind hole of the 1st resonator input through 7th ~ 11 layers and arrive the output blind hole of the 4th resonator output through 7th ~ 11 layers; 2 exhausting hole circumference array are also evenly distributed with around described input blind hole and output blind hole; The diameter of described input blind hole, input blind hole and through hole is 0.15mm; The diameter of described 2 exhausting hole circumference array is 0.73mm and 1.18mm respectively.
Whole filter is made up of 11 layers of ltcc substrate, and integral thickness is 1.056mm, and relative dielectric constant is 5.9.8 laminar substrates that filter cell is positioned at bottom are inner, and itself and top layer co-planar waveguide realize interconnected by transformational structure.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or equivalent replacement is carried out to wherein portion of techniques feature, and these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (1)
1. there is a hair clip filter for transformational structure, comprise the ceramic substrate and 1st ~ 4 hairpin-line resonator that are made up of 1st ~ 11 layers of LTCC; 8th layer of upper surface and the 1st layer of lower surface of described ceramic substrate are all coated with metal ground, are intermediate grounded layer between described 4th layer and the 5th layer; Described 1st resonator and the 4th resonator are symmetricly set on the strip line layer between the 6th layer and the 7th layer; Described 2nd resonator and the 3rd resonator are symmetricly set on the strip line layer between layers 2 and 3; Described 1st resonator and the 4th resonator are the hairpin-line resonator with asymmetric input/output structure; Described 2nd resonator and the 3rd resonator are the hairpin-line resonator with symmetry inputs and outputs structure; Described intermediate grounded layer offers 2 gaps to produce hybrid coupled; It is characterized in that, the upper surface of described 11th layer is set to co-planar waveguide layer, and described transformational structure is arrive the input blind hole of the 1st resonator input through 7th ~ 11 layers and arrive the output blind hole of the 4th resonator output through 7th ~ 11 layers; 2 exhausting hole circumference array are also evenly distributed with around described input blind hole and output blind hole; The diameter of described input blind hole, input blind hole and through hole is 0.15mm; The diameter of described 2 exhausting hole circumference array is 0.73mm and 1.18mm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410539112.4A CN104319436A (en) | 2014-09-27 | 2014-09-27 | Hairpin filter with conversion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410539112.4A CN104319436A (en) | 2014-09-27 | 2014-09-27 | Hairpin filter with conversion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104319436A true CN104319436A (en) | 2015-01-28 |
Family
ID=52374639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410539112.4A Pending CN104319436A (en) | 2014-09-27 | 2014-09-27 | Hairpin filter with conversion structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104319436A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020063611A1 (en) * | 2000-11-29 | 2002-05-30 | Murata Manufacturing Co., Ltd. | Multilayered LC filter |
-
2014
- 2014-09-27 CN CN201410539112.4A patent/CN104319436A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020063611A1 (en) * | 2000-11-29 | 2002-05-30 | Murata Manufacturing Co., Ltd. | Multilayered LC filter |
Non-Patent Citations (1)
| Title |
|---|
| ZEQUAN GUO等: ""A LTCC-Based Ku-Band 3D Bandpass Filter Using Stepped-Impedance Hairpin Resonators"", 《MICROWAVE AND MILLIMETER WAVE TECHNOLOGY》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202888377U (en) | Five-stage microstrip line bridge | |
| CN105609909A (en) | Device for transition from rectangular waveguide to substrate integrated waveguide on Ka-band | |
| CN103779642A (en) | Three-dimensional integrated micro-shielding MEMS filter bank of multiplayer stacking structure | |
| CN104241737A (en) | LTCC filtering Balun based on resonator coupling | |
| CN104900966A (en) | Five-stage microstrip line bridge | |
| CN110429363A (en) | A kind of three passband function filter-dividers based on multimode fork-shaped resonator | |
| CN105489995A (en) | Microstrip line bridge | |
| CN104900961A (en) | Five-stage microstrip line bridge | |
| CN107302122A (en) | Three-passband filter based on substrate integration wave-guide | |
| CN104836007A (en) | Five-stage coupling bridge | |
| CN104900965A (en) | Novel four-inlet and four-outlet bridge | |
| CN104900962A (en) | Multifunctional electric bridge | |
| CN104900960A (en) | Four-inlet and four-outlet bridge | |
| CN107026303A (en) | Bandpass filter based on toroidal cavity resonator | |
| CN204558431U (en) | A kind of big-power solar cell piece graphite boat | |
| CN104319436A (en) | Hairpin filter with conversion structure | |
| CN103607840A (en) | Metal dome golden finger, key structure and metal dome assembling technology | |
| CN201689958U (en) | Microwave filter | |
| CN204205000U (en) | A kind of LTCC filtering Ba Lun based on resonator | |
| CN104821424A (en) | Five-stage microstrip line bridge | |
| CN204168260U (en) | A kind of filter of high out-of-side rejection | |
| CN204651447U (en) | A kind of medium discrete cross-coupled filter | |
| CN203826525U (en) | Low pass filter | |
| EP4242410A3 (en) | Energy-efficient, microwave-transparent window compatible with present design | |
| CN104821423A (en) | Four-in four-out electric bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |